WorkerGlobalScope: offline event
Note: This feature is only available in Web Workers.
The offline event of the WorkerGlobalScope fires when the device loses connection to the internet.
Syntax
Use the event name in methods like addEventListener(), or set an event handler property.
js
addEventListener("offline", (event) => {});
onoffline = (event) => {};
Event type
A generic Event.
Example
The following code snippet shows an onoffline handler set inside a worker:
js
self.onoffline = () => {
console.log("Your worker is now offline");
};
The same snippet, but using addEventListener():
js
self.addEventListener("offline", () => {
console.log("Your worker is now offline");
});
Specifications
| Specification |
|---|
| HTML # handler-workerglobalscope-onoffline |
Browser compatibility
| desktop | mobile | server | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
offline event | |||||||||||||
See also
The WorkerGlobalScope interface it belongs to.